Lubricating device.



G. A. AMBLER.

LUBRIOATING DEVICE.

APPLIOATION FILED AUG. 6, 1906' Patented June 4, 1912.

WI TNES'S'ESL UNITED STATES PATENT o FIoE.

GEORGE-A. AMBLER, F WINCHESTER, MASSACHUSETTS, ASSIGNOR '10 UNITED SHOE MACHINERY COMPANY, Q PATERSQN, NEW JERsEY, A CORPORATION OF itEw JERSEY.

LUBRIGATING DEVICE.

Specification of Letters Patent.

Patented June 4, 1912.

To all whom'z't'mag concern 2 Be it known that I, GEono A.'AMBLER, a. citizen of'the United States, residing at WVincheste'r'. in the county of Middlesex and Commonwealth of Massachusetts, have invented certain Improvements in Lubrlcatlng Devices, of which the following description,

- in connection withthe accompanyingdrawings, is a specification, like reference characterson the drawings indicating like parts in the several. figures.

This invention relates to devices for lubricating friction-surfaces, more particu-, vlarlycam-surfaces which rotate atahlgh speed. For the operator to keep such surfaces properly lubricated manually would consume a great deal of time.

The object of this invention is to provide means for automatically supplying alubricant to such' surfaces in suflicient quantity to insure their proper lubrication without waste. This object is accomplished by pro viding a receptacle for the lubricant from which it is fed to the friction-surfaces in small quantities by centrifugal force. The

receptacle is preferably formed-by cutting out a chamber in a body which is designed to be rotated. The receptacle and the friction-surfaces are connected by a., passage within which there. is preferably a valve normally'held upon a valve-seat in position to be opened at intervals by a suitable actuating mechanism to permit the flow of lubricant to the friction-surfaces.

In the particular embodiment of the invention herein shown, the rotatable body consists of a cam-disk. A valve is seated in the passage connecting the receptacle and A the' cam-surface so that it is normally in position to be opened once. duringevery rotation of the cam disk by the member which is in'engagement with the cam-surface. It is desirable that the valve have a rounded surface to ride upon the member a view of the device in sideelevation with a portion broken away; Fig. *2 is a sectional view on the line oa of Fig. 1 looking in the direction of the arrow.

The shaft 2 carries a cam-disk 4 having a cam-groove 6. The roller8 which runs in this groove is secured on an arm or lever 10 by means of a bolt 12 and a nut 14. The bolt passes through a. slot 16 in, the arm to permit adjustment -of the roller. A receptacle 18 is formed in the cam-disk by cut-. ting out a portion to form a chamber. A

plug 20 closes a duct 22 which leads to said receptacle. Within the receptacle may be placed'absorbent material 23 such as woo]. The open end of the chamber is closed by a plate 24 removably secured to the cam-disk by screws 26. From the receptacle a passage 28 for the escape of oil leads to the camgroove 6. A spring 30 in this passage holds the valve 32 upon a valve-seat 34, the end of the spring, which is opposite to the valve,

resting upon a pinor shoulder 36, The valve is preferably a steel ball which is mounted so that it projects intothe cam-- groove sufliciently to be engaged by the roller 8.

' .The operation ofthefdevice is as follows :The receptacle 18 is filled with oil, or other lubricant which is introduced through the duct 22, the plug 20 having. been removed. When this has been done the plug is put-in place and'the machine may then be started. It is designed to be. rotated at a high rate of speed and the centrifugal force forces the oil from the chamber into the passage. 28 against the valve 32 which is normally held closed by the spring 30; The valve is opened once for every rotation of the cam-disk by engagement with the roller.

8 and a small quantity of lubricant is permittedto escape. The cam-surface is thus kept properly lubricated without requiring the attention of the operator except to keep' asufiicient quantity of oil inthe receptacle 18. The absorbent material 23 may be renewed whenever desired by removing the plate 24.

A detailed description of a complete device has been given but it is evident that Va riouschanges in arrangement and in details may be made without departing from the spirit of the invention.

" Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is 1. A device of the class described provided with a-friction surface and having in combination a receptacle for a lubricant,

said receptacle and surface being connected by a passageway into which the lubricant is urged by centrifugal force, and means controlling. the flow of lubricant through said passageway and arranged to effect an intermittent feed of lubricant to saidsurface.

2. A device 'of the character described having a friction surface and a chamber for lubricating material, means supporting said device for movement, said device having a passageway connecting said chamber and said friction surface, said passageway being so located with reference to the direction of movement of the device that the lubricant is urged into said passageway'by said movement, a valve controlling the flow of lubricant through said passageway and meansin frictional en a ement with said surface-foroperating said valve.

3. In a'device of the class described,"the combination with a rotatable can; having a chamber for a lubricant located 'interiorly with respect to the cam-surface, of a valve between said chamber and camsurfaceagainst which the lubricant is fed by centrifugal force, and means for opening said valve at intervals. 7

4. In a device of the class described, the combination with a cam having a chamber for a lubricant, of a valve located in a passage connecting said chamber and the camsurfaee and provided with a valve-seat at the outer end of said passage upon which it I 6; In a device of the class described, the

combination with a cam-disk having a camgroove and a chamber for containing oil, of a valve located in a passage connecting said groove and chamber and provided with a valve-seat upon which it is normally seated, and a member which runs in said groove in actuating relation to said valve.

7. In a device of the class described the combination of a cam, a member having frictional engagement therewith, a reservoir for lubricating material carried by one of said devices, said reservoir being connected with the friction surface of its supporting device by a passage into which the lubricant is urged by the motion of the device, and means operated by the co-action between said member and cam for controlling the flow of lubricant through said passage.

In testimony whereof I have signed my. name to this specification in the presence of two subscribing witnesses.

' GEORGE A. AMBLER. Witnesses:

JOHN H. RUOKMAN, ARTHUR L. RUSSELL. 

